Chill out, WIY!
Of course nobody’s grammar is perfect, including haifagirl’s. But there are a LOT of people, in the coffee room and elsewhere, who like to write in “txt-speak” (a few particularly egregious examples of this have already been noted by the mods). haifagirl does not criticize anyone using personal attacks or just for the sake of being mean, but to try to educate others so they can write intelligibly in the future.
I might add that examples abound in the coffee room of users making harsh criticism of other users for everything under the sun. This nearly always includes some form of personal attack and name-calling. Before you start calling out haifagirl for her gentle corrections here and there, look to those who seem to enjoy constantly “bashing” others.